Sidebar mini tabs UI (views version)....

chrome/browser/ui/views/sidebar/sidebar_tab_strip_controller.h

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_SIDEBAR_SIDEBAR_TAB_STRIP_CONTROLLER_H_
+#define CHROME_BROWSER_UI_VIEWS_SIDEBAR_SIDEBAR_TAB_STRIP_CONTROLLER_H_
+#pragma once
+
+class SidebarContainer;
+class TabContentsWrapper;
+
+// Abstract sidebar tab strip model interface.
+// NOTE: All indices used by this class are in model coordinates.
+class SidebarTabStripController {
+ public:
+  // An interface to receive sidebar tab strip change notifications.
+  class Delegate {
+   public:
+    virtual ~Delegate() {}
+
+    // Sidebar tab strip view bounds are changed, the hosting window should be
+    // updated accordingly.
+    virtual void OnSidebarTabStripBoundsChanged(bool is_animating) = 0;
+  };
+
+  virtual ~SidebarTabStripController() {}
+
+  // Returns true if sidebar is expanded.
+  virtual bool IsSidebarExpanded() = 0;
+
+  // Returns true if the selected index is selected.
+  virtual bool IsTabSelected(int model_index) = 0;
+
+  // Select the tab at the specified index in the model.
+  virtual void SelectTab(int model_index) = 0;
+
+  // Show sidebar mini tabs registered for |tab|.
+  virtual void UpdateTabs(TabContentsWrapper* tab) = 0;
+
+  // Sidebar state (icon, title etc.) has changed.
+  virtual void UpdateState(const SidebarContainer* sidebar) = 0;
+
+  // Sidebar loading state changed, loading progress indicator
+  // needs to be updated.
+  virtual void UpdateLoadingState(const SidebarContainer* sidebar) = 0;
+
+  // Sidebar tab strip view bounds are changed, hosting window should be updated
+  // accordingly.
+  virtual void TabStripBoundsChanged(bool is_animating) = 0;
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_SIDEBAR_SIDEBAR_TAB_STRIP_CONTROLLER_H_
+